The Maracanã Blow refers to the devastating defeat of the Brazilian team by Uruguay in the 1950 World Cup deciding match. Hosted by Brazil, the tournament generated massive excitement, with the Brazilian team considered the top contender due to their dominant performances. The final match, held at Estadio Maracana, ended in a win for Uruguay, with goals from Juan Schiaffino and Ghiggia after the Brazilian team had taken an early lead.

This defeat stunned the country, leading to widespread grief and alterations in the team's strategy and identity. Moacir Barbosa, the goalkeeper was particularly blamed and faced severe criticism. The Maracanazo remains one of the most iconic upsets in football history and a profound moment in Brazil's 1950 World Cup Heartbreak sports history.